Home / 661,512,912.66-992,264,954.90-268,033,933.96

Finding the Fourth Proportional to 661,512,912.66, 992,264,954.90 and 268,033,933.96

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Solution

The fourth proportional to 661,512,912.66, 992,264,954.90 and 268,033,933.96 is: 402,049,112.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,512,912.66 : 992,264,954.90 = 268,033,933.96 : x
  2. Step 2: Convert to fraction form
    661,512,912.66/992,264,954.90 = 268,033,933.96/x
  3. Step 3: Cross multiply
    661,512,912.66x = 992,264,954.90 × 268,033,933.96
  4. Step 4: Simplify right side
    661,512,912.66x = 265,960,679,388,668,160
  5. Step 5: Solve for x
    x = 265,960,679,388,668,160/661,512,912.66
  6. Step 6: Final answer
    x = 402,049,112.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.